[Rcpp-devel] rcpp 0.10 on mac error with sourceCpp

[Dirk Eddelbuettel]

On 15 November 2012 at 13:40, Jiqiang Guo wrote:
| Thanks.
| 
| The same error if I use cppFunction thought the example in sourceCpp
| use a string of c++ code passed using code:

Oh, sorry, my bad -- was short of time and couldn;t test, and don't even have
a mac.  I will let the mac squad get to it...

Dirk
 
| > require(Rcpp)
| >
| >      cppFunction(code='
| +        #include <Rcpp.h>
| +
| +        // [[Rcpp::export]]
| +        int fibonacci(const int x) {
| +          if (x == 0) return(0);
| +          if (x == 1) return(1);
| +          return (fibonacci(x - 1)) + fibonacci(x - 2);
| +        }'
| +      )
| Error in tools:::file_path_as_absolute(base:::system.file(..., package
| = "Rcpp")) :
|   file '' does not exist
| >
| >
| > ?cppFunction
| > example(sourceCpp)
| 
| srcCpp> ## Not run:
| srcCpp> ##D
| srcCpp> ##D sourceCpp("fibonacci.cpp")
| srcCpp> ##D
| srcCpp> ##D sourceCpp(code='
| srcCpp> ##D   #include <Rcpp.h>
| srcCpp> ##D
| srcCpp> ##D   // [[Rcpp::export]]
| srcCpp> ##D   int fibonacci(const int x) {
| srcCpp> ##D     if (x == 0) return(0);
| srcCpp> ##D     if (x == 1) return(1);
| srcCpp> ##D     return (fibonacci(x - 1)) + fibonacci(x - 2);
| srcCpp> ##D   }'
| srcCpp> ##D )
| srcCpp> ##D
| srcCpp> ## End(Not run)
| srcCpp>
| srcCpp>
| srcCpp>
| 
| 
| --
| Jiqiang
| 
| On Thu, Nov 15, 2012 at 1:34 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
| > On 15 November 2012 at 13:20, Jiqiang Guo wrote:
| > | I tried the example of sourceCpp on Mac mountain lion with R 2.15.1
| > | with the following error (I hit the similar error in using RStan as
| > | well).
| > |
| > | > library(Rcpp)
| > | > require(Rcpp)
| > | >
| > | >      sourceCpp(code='
| >
| > Operator error:  sourceCpp() takes a filename.  cppFunction() takes a
| > "program in a string" a la cxxfunction()
| >
| > Dirk

-- 
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com